:root {
  --bg: #0d1117;
  --bg-2: #10151d;
  --card: #161b22;
  --card-2: #1c2128;
  --border: #30363d;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #ff5c33;
  --accent2: #ffb86b;
  --gold: #f5c518;
  --primary: #ff5c33;
  --primary-dark: #e5471d;
  --primary-light: #ffb86b;
  --bg-gray: #0d1117;
  --bg-alt: #161b22;
  --title-color: #e6edf3;
  --body-color: #8b949e;
  --border-light: #30363d;
}

body.page-dark { background: var(--bg); color: var(--text); }
body.page-dark ::selection { background: rgba(255,92,51,.35); color: #fff; }

.container, .baichong-container, .page-container, .hero-slide-text,
.header-inner, .site-header .header-inner, .footer-container, .hero-container {
  width: 75%; transition: width .3s ease;
}
.container, .baichong-container, .hero-container { max-width: 1600px; }

@media(max-width:1700px){ .container, .baichong-container, .page-container, .hero-slide-text, .header-inner, .site-header .header-inner, .footer-container, .hero-container { width:82%; } }
@media(max-width:1500px){ .container, .baichong-container, .page-container, .hero-slide-text, .header-inner, .site-header .header-inner, .footer-container, .hero-container { width:88%; } }
@media(max-width:1300px){ .container, .baichong-container, .page-container, .hero-slide-text, .header-inner, .site-header .header-inner, .footer-container, .hero-container { width:94%; } }
@media(max-width:1100px){ .container, .baichong-container, .page-container, .hero-slide-text, .header-inner, .site-header .header-inner, .footer-container, .hero-container { width:98%; max-width:none; } }
@media(max-width:768px){ .container, .baichong-container, .page-container, .hero-slide-text, .header-inner, .site-header .header-inner, .footer-container, .hero-container { width:100%; padding:0 15px; } }

.page-dark .site-header { background: transparent; }
.page-dark .site-header:hover { background: rgba(13,17,23,.9); border-bottom-color: rgba(255,92,51,.2); }
.page-dark .site-header:hover .main-nav > ul > li > a,
.page-dark .site-header:hover .main-nav > ul > li > a:hover,
.page-dark .site-header:hover .main-nav > ul > li > a.active { color: #e6edf3; }
.page-dark .site-header.scrolled {
  background: rgba(13,17,23,.85);
  border-bottom-color: var(--border);
  box-shadow: 0 8px 30px rgba(0,0,0,.45);
}
.page-dark .scrolled .main-nav a,
.page-dark .scrolled .main-nav > ul > li > a:hover,
.page-dark .scrolled .main-nav > ul > li > a.active { color: #e6edf3; }
.page-dark .main-nav a::after { background: linear-gradient(90deg, var(--accent), var(--accent2)); }
.page-dark .main-nav .submenu { background: #161b22; border-color: var(--border); box-shadow: 0 16px 48px rgba(0,0,0,.55); }
.page-dark .main-nav .submenu a { color: #8b949e; }
.page-dark .main-nav .submenu a:hover { color: #ffb86b; background: rgba(255,92,51,.08); }
.page-dark .logo-img-default { display: block !important; }
.page-dark .logo-img-scrolled { display: none !important; }
.page-dark .header-consult-btn { background: linear-gradient(135deg, var(--accent), #e5471d); }
.page-dark .header-consult-btn:hover { background: linear-gradient(135deg, #ff7a4d, var(--accent)); box-shadow: 0 8px 28px rgba(255,92,51,.4); }

.page-dark .site-footer { background: #0a0e14; }
.page-dark .footer-friend-links a:hover { color: var(--accent2); }

.page-dark .mobile-menu-panel { background: #0d1117; }
.page-dark .mobile-menu-panel .main-nav ul li a { color: #e6edf3; }
.page-dark .mobile-menu-panel .main-nav ul li a:hover { color: var(--accent2); }

.dk-hero {
  position: relative; overflow: hidden;
  padding: 168px 0 84px;
  background: linear-gradient(180deg, #0d1117 0%, #10151d 100%);
}
.dk-hero-bg {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  filter: saturate(.8) brightness(.42);
}
.dk-hero-ov {
  position: absolute; inset: 0;
  background: radial-gradient(900px 460px at 78% 6%, rgba(255,92,51,.2), transparent 62%),
              radial-gradient(700px 420px at 8% 96%, rgba(255,184,107,.1), transparent 60%),
              linear-gradient(180deg, rgba(13,17,23,.72) 0%, rgba(13,17,23,.94) 100%);
}
.dk-hero-inner { position: relative; z-index: 2; }
.dk-crumb { display: flex; align-items: center; gap: 8px; font-size: .85rem; color: var(--muted); margin-bottom: 18px; flex-wrap: wrap; }
.dk-crumb a { color: var(--muted); text-decoration: none; transition: color .3s ease; }
.dk-crumb a:hover { color: var(--accent2); }
.dk-crumb .dk-sep { opacity: .4; }
.dk-label {
  display: inline-block; font-size: .72rem; letter-spacing: 3px; font-weight: 700;
  text-transform: uppercase; color: var(--accent2);
  padding: 6px 15px; border-radius: 999px;
  border: 1px solid rgba(255,92,51,.35); background: rgba(255,92,51,.07);
  margin-bottom: 18px;
}
.dk-h1 {
  font-size: clamp(1.8rem, 3.6vw, 2.85rem); font-weight: 800; color: #fff;
  line-height: 1.28; margin: 0 0 16px;
}
.dk-lead {
  font-size: clamp(.95rem, 1.3vw, 1.08rem); color: rgba(230,237,243,.78);
  line-height: 1.9; margin: 0; max-width: 860px;
}
.dk-hero .dk-btns { margin-top: 30px; justify-content: flex-start; }
.dk-hero .dk-tags { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 24px; }

.dk-grad {
  background: linear-gradient(120deg, var(--accent) 0%, var(--accent2) 60%, var(--gold) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

.dk-sec { padding: 86px 0; position: relative; }
.dk-sec-alt { background: var(--bg-2); }
.dk-head { text-align: center; margin: 0 auto 48px; }
.dk-head-left { text-align: left; margin: 0 0 40px; }
.dk-title { font-size: clamp(1.45rem, 2.4vw, 2rem); font-weight: 800; color: var(--title-color); line-height: 1.32; margin: 0 0 12px; }
.dk-sub { font-size: .97rem; color: var(--body-color); line-height: 1.85; margin: 0; }

.dk-card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; transition: all .35s ease; }
.dk-card-hover:hover {
  transform: translateY(-6px); border-color: rgba(255,92,51,.45);
  box-shadow: 0 16px 40px rgba(0,0,0,.5);
}

.dk-tag {
  display: inline-block; font-size: .78rem; color: var(--accent2);
  background: rgba(255,184,107,.1); border: 1px solid rgba(255,184,107,.22);
  padding: 4px 12px; border-radius: 999px;
}

.dk-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.dk-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 30px; border-radius: 10px; border: 1px solid transparent;
  font-size: .95rem; font-weight: 600; text-decoration: none; cursor: pointer;
  transition: all .3s ease;
}
.dk-btn svg { width: 16px; height: 16px; }
.dk-btn-primary { background: linear-gradient(135deg, var(--accent), #e5471d); color: #fff; }
.dk-btn-primary:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 12px 30px rgba(255,92,51,.42); }
.dk-btn-outline { color: var(--accent2); border-color: var(--border); background: rgba(255,184,107,.06); }
.dk-btn-outline:hover { background: var(--accent); border-color: transparent; color: #fff; }

.dk-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.dk-stat { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 26px 18px; text-align: center; transition: all .35s ease; }
.dk-stat:hover { border-color: rgba(255,92,51,.5); transform: translateY(-4px); }
.dk-stat-num { font-size: clamp(1.6rem, 2.8vw, 2.3rem); font-weight: 800; color: var(--accent); line-height: 1.15; }
.dk-stat-num em { font-style: normal; font-size: .95rem; color: var(--accent2); margin-left: 2px; }
.dk-stat-label { margin-top: 6px; font-size: .85rem; color: var(--muted); }

.dk-faq { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; align-items: start; }
.dk-faq-item { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 22px 24px; transition: all .3s ease; }
.dk-faq-item[open], .dk-faq-item:hover { border-color: rgba(255,92,51,.45); box-shadow: 0 12px 32px rgba(0,0,0,.4); }
.dk-faq-q { display: flex; align-items: flex-start; gap: 12px; cursor: pointer; list-style: none; }
.dk-faq-q::-webkit-details-marker { display: none; }
.dk-faq-q h4 { margin: 0; flex: 1; font-size: 1rem; font-weight: 700; color: var(--title-color); line-height: 1.5; }
.dk-faq-ico {
  flex-shrink: 0; width: 26px; height: 26px; border-radius: 8px;
  background: var(--accent); color: #fff; font-size: .85rem; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.dk-faq-caret { flex-shrink: 0; width: 20px; height: 20px; color: var(--muted); transition: transform .3s ease; }
.dk-faq-caret svg { width: 20px; height: 20px; display: block; }
.dk-faq-item[open] .dk-faq-caret { transform: rotate(180deg); }
.dk-faq-a { margin-top: 14px; padding-top: 14px; border-top: 1px dashed rgba(48,54,61,.7); color: var(--body-color); font-size: .88rem; line-height: 1.85; }
.dk-faq-a p { margin: 0 0 8px; }
.dk-faq-a p:last-child { margin-bottom: 0; }

.dk-cta {
  position: relative; overflow: hidden; text-align: center; padding: 92px 0;
  background: radial-gradient(900px 400px at 50% 0%, rgba(255,92,51,.16), transparent 70%), var(--bg);
}
.dk-cta h2 { font-size: clamp(1.5rem, 3vw, 2.15rem); font-weight: 800; color: #fff; margin: 0 0 14px; line-height: 1.35; }
.dk-cta p { font-size: 1.02rem; color: rgba(230,237,243,.72); line-height: 1.85; margin: 0 0 30px; }

.dk-note { font-size: .82rem; color: var(--muted); line-height: 1.75; }

@keyframes dkUp { from { opacity: 0; transform: translateY(26px); } to { opacity: 1; transform: none; } }
.dk-reveal { animation: dkUp .75s ease both; }
@supports (animation-timeline: view()) {
  .dk-reveal { animation-timeline: view(); animation-range: entry 4% cover 26%; }
}

@media(prefers-reduced-motion: reduce) {
  .dk-reveal { animation: none; }
}
@media(max-width:1200px) {
  .dk-stats { grid-template-columns: repeat(2, 1fr); }
}
@media(max-width:992px) {
  .dk-sec { padding: 64px 0; }
  .dk-hero { padding: 140px 0 64px; }
  .dk-faq { grid-template-columns: 1fr; }
}
@media(max-width:640px) {
  .dk-sec { padding: 48px 0; }
  .dk-hero { padding: 124px 0 52px; }
  .dk-head { margin-bottom: 32px; }
  .dk-hero .dk-btns { justify-content: flex-start; }
  .dk-btn { padding: 12px 24px; }
  .dk-stat { padding: 20px 14px; }
}